Document (#27887)

Author
Bar-Ilan, J.
Peritz, B.C.
Title
Evolution, continuity, and disappearance of documents on a specific topic an the Web : a longitudinal study of "informetrics"
Source
Journal of the American Society for Information Science and Technology. 55(2004) no.11, S.980-990
Year
2004
Abstract
The present paper analyzes the changes that occurred to a set of Web pages related to "informetrics" over a period of 5 years between June 1998 and June 2003. Four times during this time span, in 1998,1999, 2002, and 2003, we monitored previously located pages and searched for new ones related to the topic. Thus, we were able to study the growth of the topic, white analyzing the rates of change and disappearance. The results indicate that modification, disappearance, and resurfacing cannot be ignored when studying the structure and development of the Web.
Theme
Internet
Informetrie
Object
WWW

Similar documents (author)

  1. Bar-Ilan, J.; Peritz, B.C.: Informetric theories and methods for exploring the Internet : an analytical survey of recent research literature (2002) 5.38
    5.3786936 = sum of:
      5.3786936 = sum of:
        2.1336083 = weight(author_txt:ilan in 813) [ClassicSimilarity], result of:
          2.1336083 = score(doc=813,freq=1.0), product of:
            0.60312116 = queryWeight, product of:
              8.085969 = idf(docFreq=36, maxDocs=44218)
              0.074588604 = queryNorm
            3.5376115 = fieldWeight in 813, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              8.085969 = idf(docFreq=36, maxDocs=44218)
              0.4375 = fieldNorm(doc=813)
        3.245085 = weight(author_txt:peritz in 813) [ClassicSimilarity], result of:
          3.245085 = score(doc=813,freq=1.0), product of:
            0.7976496 = queryWeight, product of:
              1.1500158 = boost
              9.298992 = idf(docFreq=10, maxDocs=44218)
              0.074588604 = queryNorm
            4.068309 = fieldWeight in 813, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              9.298992 = idf(docFreq=10, maxDocs=44218)
              0.4375 = fieldNorm(doc=813)
    
  2. Bar-Ilan, J.; Peritz, B.C.: ¬A method for measuring the evolution of a topic on the Web : the case of "informetrics" (2009) 5.38
    5.3786936 = sum of:
      5.3786936 = sum of:
        2.1336083 = weight(author_txt:ilan in 3089) [ClassicSimilarity], result of:
          2.1336083 = score(doc=3089,freq=1.0), product of:
            0.60312116 = queryWeight, product of:
              8.085969 = idf(docFreq=36, maxDocs=44218)
              0.074588604 = queryNorm
            3.5376115 = fieldWeight in 3089, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              8.085969 = idf(docFreq=36, maxDocs=44218)
              0.4375 = fieldNorm(doc=3089)
        3.245085 = weight(author_txt:peritz in 3089) [ClassicSimilarity], result of:
          3.245085 = score(doc=3089,freq=1.0), product of:
            0.7976496 = queryWeight, product of:
              1.1500158 = boost
              9.298992 = idf(docFreq=10, maxDocs=44218)
              0.074588604 = queryNorm
            4.068309 = fieldWeight in 3089, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              9.298992 = idf(docFreq=10, maxDocs=44218)
              0.4375 = fieldNorm(doc=3089)
    
  3. Lazinger, S.S.; Peritz, B.C.; Bar-Ilan, J.: Using a local area network as an interface to wide area networks in library and information science education (1993) 4.61
    4.6103086 = sum of:
      4.6103086 = sum of:
        1.8288072 = weight(author_txt:ilan in 7125) [ClassicSimilarity], result of:
          1.8288072 = score(doc=7125,freq=1.0), product of:
            0.60312116 = queryWeight, product of:
              8.085969 = idf(docFreq=36, maxDocs=44218)
              0.074588604 = queryNorm
            3.0322385 = fieldWeight in 7125, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              8.085969 = idf(docFreq=36, maxDocs=44218)
              0.375 = fieldNorm(doc=7125)
        2.7815015 = weight(author_txt:peritz in 7125) [ClassicSimilarity], result of:
          2.7815015 = score(doc=7125,freq=1.0), product of:
            0.7976496 = queryWeight, product of:
              1.1500158 = boost
              9.298992 = idf(docFreq=10, maxDocs=44218)
              0.074588604 = queryNorm
            3.487122 = fieldWeight in 7125, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              9.298992 = idf(docFreq=10, maxDocs=44218)
              0.375 = fieldNorm(doc=7125)
    
  4. Lazinger, S.S.; Bar-Ilan, J.; Peritz, B.C.: Internet use by faculty members in various disciplines : a comparative case study (1997) 4.61
    4.6103086 = sum of:
      4.6103086 = sum of:
        1.8288072 = weight(author_txt:ilan in 390) [ClassicSimilarity], result of:
          1.8288072 = score(doc=390,freq=1.0), product of:
            0.60312116 = queryWeight, product of:
              8.085969 = idf(docFreq=36, maxDocs=44218)
              0.074588604 = queryNorm
            3.0322385 = fieldWeight in 390, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              8.085969 = idf(docFreq=36, maxDocs=44218)
              0.375 = fieldNorm(doc=390)
        2.7815015 = weight(author_txt:peritz in 390) [ClassicSimilarity], result of:
          2.7815015 = score(doc=390,freq=1.0), product of:
            0.7976496 = queryWeight, product of:
              1.1500158 = boost
              9.298992 = idf(docFreq=10, maxDocs=44218)
              0.074588604 = queryNorm
            3.487122 = fieldWeight in 390, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              9.298992 = idf(docFreq=10, maxDocs=44218)
              0.375 = fieldNorm(doc=390)
    
  5. Peritz, B.C.: ¬A classification of citation roles for the social sciences and related fields (1983) 2.32
    2.317918 = sum of:
      2.317918 = product of:
        4.635836 = sum of:
          4.635836 = weight(author_txt:peritz in 3073) [ClassicSimilarity], result of:
            4.635836 = score(doc=3073,freq=1.0), product of:
              0.7976496 = queryWeight, product of:
                1.1500158 = boost
                9.298992 = idf(docFreq=10, maxDocs=44218)
                0.074588604 = queryNorm
              5.81187 = fieldWeight in 3073, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.298992 = idf(docFreq=10, maxDocs=44218)
                0.625 = fieldNorm(doc=3073)
        0.5 = coord(1/2)
    

Similar documents (content)

  1. Bar-Ilan, J.: ¬The Web as an information source on informetrics? : A content analysis (2000) 0.13
    0.12735789 = sum of:
      0.12735789 = product of:
        0.5306579 = sum of:
          0.036722578 = weight(abstract_txt:analyzes in 4587) [ClassicSimilarity], result of:
            0.036722578 = score(doc=4587,freq=1.0), product of:
              0.09508334 = queryWeight, product of:
                1.0070448 = boost
                6.1794343 = idf(docFreq=248, maxDocs=44218)
                0.015279422 = queryNorm
              0.38621464 = fieldWeight in 4587, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.1794343 = idf(docFreq=248, maxDocs=44218)
                0.0625 = fieldNorm(doc=4587)
          0.037159156 = weight(abstract_txt:1998 in 4587) [ClassicSimilarity], result of:
            0.037159156 = score(doc=4587,freq=1.0), product of:
              0.095835455 = queryWeight, product of:
                1.0110198 = boost
                6.203826 = idf(docFreq=242, maxDocs=44218)
                0.015279422 = queryNorm
              0.38773912 = fieldWeight in 4587, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.203826 = idf(docFreq=242, maxDocs=44218)
                0.0625 = fieldNorm(doc=4587)
          0.12259228 = weight(abstract_txt:pages in 4587) [ClassicSimilarity], result of:
            0.12259228 = score(doc=4587,freq=5.0), product of:
              0.15648681 = queryWeight, product of:
                1.8270501 = boost
                5.6055775 = idf(docFreq=441, maxDocs=44218)
                0.015279422 = queryNorm
              0.7834033 = fieldWeight in 4587, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                5.6055775 = idf(docFreq=441, maxDocs=44218)
                0.0625 = fieldNorm(doc=4587)
          0.12788542 = weight(abstract_txt:june in 4587) [ClassicSimilarity], result of:
            0.12788542 = score(doc=4587,freq=1.0), product of:
              0.2752367 = queryWeight, product of:
                2.4230633 = boost
                7.4342074 = idf(docFreq=70, maxDocs=44218)
                0.015279422 = queryNorm
              0.46463796 = fieldWeight in 4587, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.4342074 = idf(docFreq=70, maxDocs=44218)
                0.0625 = fieldNorm(doc=4587)
          0.060567558 = weight(abstract_txt:topic in 4587) [ClassicSimilarity], result of:
            0.060567558 = score(doc=4587,freq=1.0), product of:
              0.1914327 = queryWeight, product of:
                2.4749434 = boost
                5.062254 = idf(docFreq=760, maxDocs=44218)
                0.015279422 = queryNorm
              0.31639087 = fieldWeight in 4587, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.062254 = idf(docFreq=760, maxDocs=44218)
                0.0625 = fieldNorm(doc=4587)
          0.14573093 = weight(abstract_txt:informetrics in 4587) [ClassicSimilarity], result of:
            0.14573093 = score(doc=4587,freq=1.0), product of:
              0.30028027 = queryWeight, product of:
                2.5309 = boost
                7.7650614 = idf(docFreq=50, maxDocs=44218)
                0.015279422 = queryNorm
              0.48531634 = fieldWeight in 4587, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.7650614 = idf(docFreq=50, maxDocs=44218)
                0.0625 = fieldNorm(doc=4587)
        0.24 = coord(6/25)
    
  2. Stock, W.G.; Weber, S.: Facets of informetrics : Preface (2006) 0.12
    0.12043307 = sum of:
      0.12043307 = product of:
        0.5018045 = sum of:
          0.013250146 = weight(abstract_txt:study in 76) [ClassicSimilarity], result of:
            0.013250146 = score(doc=76,freq=2.0), product of:
              0.058378812 = queryWeight, product of:
                1.1159358 = boost
                3.423806 = idf(docFreq=3916, maxDocs=44218)
                0.015279422 = queryNorm
              0.22696841 = fieldWeight in 76, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.423806 = idf(docFreq=3916, maxDocs=44218)
                0.046875 = fieldNorm(doc=76)
          0.017353155 = weight(abstract_txt:related in 76) [ClassicSimilarity], result of:
            0.017353155 = score(doc=76,freq=1.0), product of:
              0.088044815 = queryWeight, product of:
                1.3704509 = boost
                4.2046843 = idf(docFreq=1793, maxDocs=44218)
                0.015279422 = queryNorm
              0.19709457 = fieldWeight in 76, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.2046843 = idf(docFreq=1793, maxDocs=44218)
                0.046875 = fieldNorm(doc=76)
          0.0411187 = weight(abstract_txt:pages in 76) [ClassicSimilarity], result of:
            0.0411187 = score(doc=76,freq=1.0), product of:
              0.15648681 = queryWeight, product of:
                1.8270501 = boost
                5.6055775 = idf(docFreq=441, maxDocs=44218)
                0.015279422 = queryNorm
              0.26276144 = fieldWeight in 76, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.6055775 = idf(docFreq=441, maxDocs=44218)
                0.046875 = fieldNorm(doc=76)
          0.056762174 = weight(abstract_txt:2003 in 76) [ClassicSimilarity], result of:
            0.056762174 = score(doc=76,freq=1.0), product of:
              0.19401002 = queryWeight, product of:
                2.0343406 = boost
                6.241566 = idf(docFreq=233, maxDocs=44218)
                0.015279422 = queryNorm
              0.29257342 = fieldWeight in 76, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.241566 = idf(docFreq=233, maxDocs=44218)
                0.046875 = fieldNorm(doc=76)
          0.04542567 = weight(abstract_txt:topic in 76) [ClassicSimilarity], result of:
            0.04542567 = score(doc=76,freq=1.0), product of:
              0.1914327 = queryWeight, product of:
                2.4749434 = boost
                5.062254 = idf(docFreq=760, maxDocs=44218)
                0.015279422 = queryNorm
              0.23729315 = fieldWeight in 76, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.062254 = idf(docFreq=760, maxDocs=44218)
                0.046875 = fieldNorm(doc=76)
          0.3278946 = weight(abstract_txt:informetrics in 76) [ClassicSimilarity], result of:
            0.3278946 = score(doc=76,freq=9.0), product of:
              0.30028027 = queryWeight, product of:
                2.5309 = boost
                7.7650614 = idf(docFreq=50, maxDocs=44218)
                0.015279422 = queryNorm
              1.0919619 = fieldWeight in 76, product of:
                3.0 = tf(freq=9.0), with freq of:
                  9.0 = termFreq=9.0
                7.7650614 = idf(docFreq=50, maxDocs=44218)
                0.046875 = fieldNorm(doc=76)
        0.24 = coord(6/25)
    
  3. Bar-Ilan, J.; Peritz, B.C.: ¬A method for measuring the evolution of a topic on the Web : the case of "informetrics" (2009) 0.08
    0.08495487 = sum of:
      0.08495487 = product of:
        0.42477435 = sum of:
          0.035957273 = weight(abstract_txt:previously in 3089) [ClassicSimilarity], result of:
            0.035957273 = score(doc=3089,freq=1.0), product of:
              0.093757674 = queryWeight, product of:
                6.1362057 = idf(docFreq=259, maxDocs=44218)
                0.015279422 = queryNorm
              0.38351285 = fieldWeight in 3089, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.1362057 = idf(docFreq=259, maxDocs=44218)
                0.0625 = fieldNorm(doc=3089)
          0.02313754 = weight(abstract_txt:related in 3089) [ClassicSimilarity], result of:
            0.02313754 = score(doc=3089,freq=1.0), product of:
              0.088044815 = queryWeight, product of:
                1.3704509 = boost
                4.2046843 = idf(docFreq=1793, maxDocs=44218)
                0.015279422 = queryNorm
              0.26279277 = fieldWeight in 3089, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.2046843 = idf(docFreq=1793, maxDocs=44218)
                0.0625 = fieldNorm(doc=3089)
          0.13429312 = weight(abstract_txt:pages in 3089) [ClassicSimilarity], result of:
            0.13429312 = score(doc=3089,freq=6.0), product of:
              0.15648681 = queryWeight, product of:
                1.8270501 = boost
                5.6055775 = idf(docFreq=441, maxDocs=44218)
                0.015279422 = queryNorm
              0.85817534 = fieldWeight in 3089, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                5.6055775 = idf(docFreq=441, maxDocs=44218)
                0.0625 = fieldNorm(doc=3089)
          0.085655466 = weight(abstract_txt:topic in 3089) [ClassicSimilarity], result of:
            0.085655466 = score(doc=3089,freq=2.0), product of:
              0.1914327 = queryWeight, product of:
                2.4749434 = boost
                5.062254 = idf(docFreq=760, maxDocs=44218)
                0.015279422 = queryNorm
              0.44744426 = fieldWeight in 3089, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.062254 = idf(docFreq=760, maxDocs=44218)
                0.0625 = fieldNorm(doc=3089)
          0.14573093 = weight(abstract_txt:informetrics in 3089) [ClassicSimilarity], result of:
            0.14573093 = score(doc=3089,freq=1.0), product of:
              0.30028027 = queryWeight, product of:
                2.5309 = boost
                7.7650614 = idf(docFreq=50, maxDocs=44218)
                0.015279422 = queryNorm
              0.48531634 = fieldWeight in 3089, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.7650614 = idf(docFreq=50, maxDocs=44218)
                0.0625 = fieldNorm(doc=3089)
        0.2 = coord(5/25)
    
  4. Bar-Ilan, J.: Informetrics (2009) 0.08
    0.07638333 = sum of:
      0.07638333 = product of:
        0.47739583 = sum of:
          0.015615447 = weight(abstract_txt:study in 3822) [ClassicSimilarity], result of:
            0.015615447 = score(doc=3822,freq=1.0), product of:
              0.058378812 = queryWeight, product of:
                1.1159358 = boost
                3.423806 = idf(docFreq=3916, maxDocs=44218)
                0.015279422 = queryNorm
              0.26748484 = fieldWeight in 3822, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.423806 = idf(docFreq=3916, maxDocs=44218)
                0.078125 = fieldNorm(doc=3822)
          0.028921926 = weight(abstract_txt:related in 3822) [ClassicSimilarity], result of:
            0.028921926 = score(doc=3822,freq=1.0), product of:
              0.088044815 = queryWeight, product of:
                1.3704509 = boost
                4.2046843 = idf(docFreq=1793, maxDocs=44218)
                0.015279422 = queryNorm
              0.32849097 = fieldWeight in 3822, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.2046843 = idf(docFreq=1793, maxDocs=44218)
                0.078125 = fieldNorm(doc=3822)
          0.06853116 = weight(abstract_txt:pages in 3822) [ClassicSimilarity], result of:
            0.06853116 = score(doc=3822,freq=1.0), product of:
              0.15648681 = queryWeight, product of:
                1.8270501 = boost
                5.6055775 = idf(docFreq=441, maxDocs=44218)
                0.015279422 = queryNorm
              0.43793574 = fieldWeight in 3822, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.6055775 = idf(docFreq=441, maxDocs=44218)
                0.078125 = fieldNorm(doc=3822)
          0.36432728 = weight(abstract_txt:informetrics in 3822) [ClassicSimilarity], result of:
            0.36432728 = score(doc=3822,freq=4.0), product of:
              0.30028027 = queryWeight, product of:
                2.5309 = boost
                7.7650614 = idf(docFreq=50, maxDocs=44218)
                0.015279422 = queryNorm
              1.2132908 = fieldWeight in 3822, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                7.7650614 = idf(docFreq=50, maxDocs=44218)
                0.078125 = fieldNorm(doc=3822)
        0.16 = coord(4/25)
    
  5. Börner, K.; Chen, C.; Boyack, K.W.: Visualizing knowledge domains (2002) 0.05
    0.054655526 = sum of:
      0.054655526 = product of:
        0.34159705 = sum of:
          0.023224473 = weight(abstract_txt:1998 in 4286) [ClassicSimilarity], result of:
            0.023224473 = score(doc=4286,freq=1.0), product of:
              0.095835455 = queryWeight, product of:
                1.0110198 = boost
                6.203826 = idf(docFreq=242, maxDocs=44218)
                0.015279422 = queryNorm
              0.24233696 = fieldWeight in 4286, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.203826 = idf(docFreq=242, maxDocs=44218)
                0.0390625 = fieldNorm(doc=4286)
          0.011041789 = weight(abstract_txt:study in 4286) [ClassicSimilarity], result of:
            0.011041789 = score(doc=4286,freq=2.0), product of:
              0.058378812 = queryWeight, product of:
                1.1159358 = boost
                3.423806 = idf(docFreq=3916, maxDocs=44218)
                0.015279422 = queryNorm
              0.18914035 = fieldWeight in 4286, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.423806 = idf(docFreq=3916, maxDocs=44218)
                0.0390625 = fieldNorm(doc=4286)
          0.065405145 = weight(abstract_txt:white in 4286) [ClassicSimilarity], result of:
            0.065405145 = score(doc=4286,freq=2.0), product of:
              0.15169115 = queryWeight, product of:
                1.2719696 = boost
                7.805067 = idf(docFreq=48, maxDocs=44218)
                0.015279422 = queryNorm
              0.43117312 = fieldWeight in 4286, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                7.805067 = idf(docFreq=48, maxDocs=44218)
                0.0390625 = fieldNorm(doc=4286)
          0.24192564 = weight(abstract_txt:disappearance in 4286) [ClassicSimilarity], result of:
            0.24192564 = score(doc=4286,freq=1.0), product of:
              0.6592609 = queryWeight, product of:
                4.5928884 = boost
                9.394302 = idf(docFreq=9, maxDocs=44218)
                0.015279422 = queryNorm
              0.36696494 = fieldWeight in 4286, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.394302 = idf(docFreq=9, maxDocs=44218)
                0.0390625 = fieldNorm(doc=4286)
        0.16 = coord(4/25)